Smart is not bad, the variety is quite rich, and children are also very interested. My daughter has been studying Qiao Hu, books, toys, comics and common sense of life since she was 2 years old. She likes it very much, and I think it is quite suitable for her age to learn. Although Qiao Hu plays with her, I spend some time with her every day. After all, parents' education will have a greater impact on children, and education is subtle and cannot be achieved overnight. You can see official website, a clever tiger.